Upgrade Steps for Major Software Package on Application Server

D.

Before implementing any changes to a production environment, it is essential to ensure that the changes have been tested and approved in a non-production environment, such as a test or staging environment. In this case, the software has been successfully tested in a test environment, which means it is ready for production deployment.

The next step that the administrator should take is to document the change. Documenting the change involves creating a comprehensive record of the change, including the purpose of the change, the process followed, and any potential risks or impacts associated with the change. The documentation should also include any instructions or procedures that may be required to support the change, such as how to roll back the change if necessary.

After documenting the change, the administrator should schedule system downtime. This is necessary to minimize the impact of the change on end-users and to ensure that the change is implemented correctly. During the downtime, the administrator can implement the change and perform any necessary system updates, such as operating system updates or firmware updates.

Finally, once the change has been implemented, the administrator should perform post-change validation to confirm that the change has been successful and that the system is functioning as expected. This may involve testing the application to ensure that it is working correctly or verifying that any associated services, such as backups or monitoring, are functioning as expected.

In conclusion, the correct order of steps in this scenario is:

1. Document the change
2. Schedule system downtime
3. Implement the change
4. Perform post-change validation

Therefore, option C, Document the change, is the correct answer.